source: trunk/src/org/expeditee/importer/pdfImporter.java@ 504

Last change on this file since 504 was 504, checked in by jts21, 11 years ago

New copy/paste handling, add pdfImporter, add dictionary and documentation to resources, other small changes
File size: 5.9 KB
Line 
1package org.expeditee.importer;
2
3import java.awt.Color;
4import java.awt.Graphics;
5import java.awt.Image;
6import java.awt.Point;
7import java.awt.Rectangle;
8import java.awt.image.BufferedImage;
9import java.io.File;
10import java.io.IOException;
11import java.io.RandomAccessFile;
12import java.nio.ByteBuffer;
13import java.nio.channels.FileChannel;
14
15import javax.imageio.ImageIO;
16
17import org.expeditee.gui.Browser;
18import org.expeditee.gui.Frame;
19import org.expeditee.gui.FrameCreator;
20import org.expeditee.gui.FrameGraphics;
21import org.expeditee.gui.FrameIO;
22import org.expeditee.gui.MessageBay;
23import org.expeditee.items.Item;
24import org.expeditee.items.Text;
25
26import com.sun.pdfview.PDFFile;
27import com.sun.pdfview.PDFPage;
28
29public class pdfImporter implements FileImporter {
30
31 public Item importFile(final File f, Point location) throws IOException {
32 if (location == null || f == null) {
33 return null;
34 }
35
36 final int x = 0;
37 final int y = 60;
38 final int width = Browser._theBrowser.getSize().width;
39 System.out.println(width);
40
41 final String name = FrameIO.ConvertToValidFramesetName(f.getName().substring(0,f.getName().lastIndexOf('.'))).toLowerCase();
42
43 //check if the file is a pdf
44 if(!f.getAbsolutePath().substring(f.getAbsolutePath().lastIndexOf('.')+1).toLowerCase().equals("pdf"))
45 {
46 return null;
47 }
48
49 final Text link = FrameDNDTransferHandler.importString(name, location);
50 link.setLink(name+"1");
51
52 final Frame frameset;
53 try
54 {
55 frameset = FrameIO.CreateNewFrameset(name);
56 }
57 catch(Exception e)
58 {
59 MessageBay.displayMessage("Frameset \"" + name + "\" already exists, creating a link to it");
60 return link;//if the frameset exists just make a link to the existing frameset
61 }
62
63 final String framesetPath = frameset.getPath()+name+File.separator;
64
65 System.out.println("PATH = " + framesetPath);
66
67 new Thread() {
68 public void run() {
69 try {
70 MessageBay.displayMessage("Importing " + f.getName() + "...");
71 //load a pdf from a byte buffer
72 RandomAccessFile raf = new RandomAccessFile(f, "r");
73 FileChannel channel = raf.getChannel();
74 ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
75 PDFFile pdffile = new PDFFile(buf);
76 int pages = pdffile.getNumPages();
77
78 Frame currentFrame=frameset;
79 Frame _currentFrame=null;
80 Text nextButton=null, prevButton=null;
81 final float spacing=((Text)FrameCreator.createButton("Next", null, null, 10F, 10F)).getBoundsWidth() + 30F;
82
83 //make images from the pdf pages, write frames with those images
84 for(int i=1; i<=pages; i++)
85 {
86 //remove the title from the frame
87 /* if(FrameDNDTransferHandler.modifier!=1 &&
88 currentFrame!=null &&
89 currentFrame.getTitleItem()!=null)
90 ((Text)currentFrame.getTitleItem()).delete(); */
91 //get the pdf page
92 PDFPage page = pdffile.getPage(i);
93 //get the width and height for the page
94 int w=(int)page.getBBox().getWidth(), h=(int)page.getBBox().getHeight();
95 final double res=1080;
96 if(w<res || h<res)
97 {
98 double ws=res/w;
99 double hs=res/h;
100 if(ws>hs)
101 {
102 w*=ws;
103 h*=ws;
104 }
105 else
106 {
107 w*=hs;
108 h*=hs;
109 }
110 }
111 //generate the image
112 Image img = page.getImage(w, h, //width & height
113 new Rectangle(0, 0, (int)page.getBBox().getWidth(), (int)page.getBBox().getHeight()), //clip rect
114 null, //null for the ImageObserver
115 true, //fill background with white
116 true //block until drawing is done
117 );
118 //Create a buffered image to store the image in
119 BufferedImage bimg = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB);
120 Graphics g = bimg.createGraphics();
121 //Paint the image onto the buffered image
122 g.drawImage(img, 0, 0, null);
123 g.dispose();
124 //save it as a file
125 File out = new File(framesetPath+i+".png");
126 ImageIO.write(bimg, "png", out);
127 //generate a frame with that image
128 System.out.println(width);
129 System.out.println("@i: "+framesetPath+i+".png "+width);
130 currentFrame.addText(x, y, "@i: "+framesetPath+i+".png "+width, null);
131 if(i>1)
132 {
133 //put a next button on the previous frame (points to current frame)
134 nextButton=(Text)FrameCreator.createButton("Next", null, null, 10F, 10F);
135 nextButton.setID(_currentFrame.getNextItemID());
136 nextButton.addAction("next");
137 _currentFrame.addItem(nextButton);
138 //put a previous button on the current frame (points to previous frame)
139 prevButton=(Text)FrameCreator.createButton("Prev", null, null, (i<pages)?spacing:10F, 10F);
140 prevButton.setID(currentFrame.getNextItemID());
141 prevButton.addAction("previous");
142 currentFrame.addItem(prevButton);
143 }
144 else
145 {
146 prevButton=(Text)FrameCreator.createButton("Home", null, null, (i<pages)?spacing:10F, 10F);
147 prevButton.setID(currentFrame.getNextItemID());
148 prevButton.addAction("GotoHome");
149 currentFrame.addItem(prevButton);
150 }
151 FrameIO.SaveFrame(_currentFrame,true);
152 _currentFrame=currentFrame;
153 if(i<pages) currentFrame = FrameIO.CreateFrame(frameset.getFramesetName(), name, null);
154 }
155 prevButton=(Text)FrameCreator.createButton("Home", null, null, spacing, 10F);
156 prevButton.setID(currentFrame.getNextItemID());
157 prevButton.addAction("gotohome");
158 currentFrame.addItem(prevButton);
159 FrameIO.SaveFrame(currentFrame,true);
160 MessageBay.displayMessage(f.getName() + " import complete", Color.GREEN);
161 FrameGraphics.requestRefresh(true);
162 } catch (Exception e) {
163 e.printStackTrace();
164 MessageBay.errorMessage(e.getMessage());
165 }
166 }
167 }.start();
168 FrameGraphics.refresh(true);
169 //return source;
170 return link;
171 }
172}
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